5665678 has 8 divisors (see below), whose sum is σ = 8530920. Its totient is φ = 2822040.

The previous prime is 5665661. The next prime is 5665687. The reversal of 5665678 is 8765665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4728 + ... + 5803.

It is an arithmetic number, because the mean of its divisors is an integer number (1066365).

Almost surely, 2^5665678 is an apocalyptic number.

5665678 is a deficient number, since it is larger than the sum of its proper divisors (2865242).

5665678 is a wasteful number, since it uses less digits than its factorization.

5665678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10802.

The product of its digits is 302400, while the sum is 43.

The square root of 5665678 is about 2380.2684722527. The cubic root of 5665678 is about 178.2723390753.

The spelling of 5665678 in words is "five million, six hundred sixty-five thousand, six hundred seventy-eight".